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| United States Patent |
6,247,879
|
|
Costa
|
June 19, 2001
|
Hand held drill press
Abstract
A new hand held drill press for enabling a power hand drill to be converted
into a drill press. The inventive device includes a hollow cylindrical
sleeve having an open upper end, an open lower end and a cylindrical side
wall therebetween. An interior of the cylindrical side wall has an
inwardly extending cylindrical wall disposed on a lower half portion
thereof. The open lower end of the sleeve has an annular recess formed on
an interior surface thereof. A cylindrical drill engagement collar is
provided. The cylindrical drill engagement collar is dimensioned for
coupling with a nose of a hand held drill. The collar is slidably received
within the open upper end of the hollow cylindrical sleeve. A spring
member is disposed interiorly of an upper half portion of the cylindrical
side wall of the hollow cylindrical sleeve. The spring member has a lower
portion secured to an upper end of the inwardly extending cylindrical
wall. An upper end of the spring member is disposed inwardly of the
cylindrical drill engagement collar for upward biasing thereof.
| Inventors:
|
Costa; Michael A. (94-950 Meheula Pkwy. #268, Mililani, HI 96789)
|
| Appl. No.:
|
383685 |
| Filed:
|
August 26, 1999 |
| Current U.S. Class: |
408/112; 408/110 |
| Intern'l Class: |
B23B 045/14 |
| Field of Search: |
408/67,95,97,110,112
|
References Cited
U.S. Patent Documents
| 264930 | Sep., 1882 | Conradson.
| |
| 1471137 | Oct., 1923 | Bowman.
| |
| 2175546 | Oct., 1939 | Woods | 77/55.
|
| 2375112 | May., 1945 | Kanihan | 77/55.
|
| 2625062 | Jan., 1953 | Heil | 77/55.
|
| 3339435 | Sep., 1967 | Heitz | 77/55.
|
| 3540322 | Nov., 1970 | Swanson | 77/55.
|
| 3583821 | Jun., 1971 | Shaub | 408/72.
|
| 4209069 | Jun., 1980 | Smith | 408/67.
|
| 4290717 | Sep., 1981 | Aslen | 408/241.
|
| 4507026 | Mar., 1985 | Lund | 408/72.
|
| 4538943 | Sep., 1985 | Clifton et al. | 408/14.
|
| 4836720 | Jun., 1989 | Hadden | 40/112.
|
| 4961674 | Oct., 1990 | Wang et al. | 408/14.
|
| 5061123 | Oct., 1991 | Broussard | 408/67.
|
| 5160230 | Nov., 1992 | Cuevas | 408/67.
|
| 5292210 | Mar., 1994 | Nowick | 408/67.
|
| 5419663 | May., 1995 | Psomas | 408/67.
|
| Foreign Patent Documents |
| 3140776 | Apr., 1983 | DE.
| |
| 3801141 | Jul., 1989 | DE.
| |
Primary Examiner: Howell; Daniel W.
Claims
I claim:
1. A new hand held drill press for enabling a power hand drill to be
converted into a drill press comprising, in combination:
a hollow cylindrical sleeve having an open upper end, an open lower end and
a cylindrical side wall therebetween, an interior of the cylindrical side
wall having an inwardly extending cylindrical wall disposed on a lower
half portion thereof, the open lower end of the sleeve having an annular
recess formed on an interior surface thereof;
a cylindrical drill engagement collar dimensioned for coupling with a nose
of a hand held drill, the collar slidably receiving within the open upper
end of the hollow cylindrical sleeve;
a spring member disposed interiorly of an upper half portion of the
cylindrical side wall of the hollow cylindrical sleeve, the spring member
having a lower portion secured to an upper end of the inwardly extending
cylindrical wall, an upper end of the spring member disposed inwardly of
the cylindrical drill engagement collar for upward biasing thereof; and
at least one extension disk comprising a cylindrical ring having a central
aperture therethrough, the central aperture having an upwardly extending
cylindrical flange, the flange having an annular protuberance disposed
thereon, the flange dimensioned for being received within the open lower
end of the sleeve with the annular protuberance snap engaging the annular
recess of the sleeve, the central aperture having an annular recess
disposed on an interior surface thereof.
2. A hand held drill press apparatus for enabling a power hand drill to be
converted into a drill press comprising:
a hollow cylindrical sleeve having an open upper end, an open lower end and
a cylindrical side wall therebetween, an interior of the cylindrical side
wall having an inwardly extending cylindrical wall disposed on a lower
half portion thereof, the open lower end of the sleeve having an annular
recess formed on an interior surface thereof;
a cylindrical drill engagement collar dimensioned for coupling with a nose
of a hand held drill, the collar slidably receiving within the open upper
end of the hollow cylindrical sleeve;
a spring member disposed interiorly of an upper half portion of the
cylindrical side wall of the hollow cylindrical sleeve, the spring member
having a lower portion secured to an upper end of the inwardly extending
cylindrical wall, an upper end of the spring member disposed inwardly of
the cylindrical drill engagement collar for upward biasing thereof; and
an extension disk adapted for snap engagement of the annular recess of the
sleeve, the extension disk has a central aperture therethrough.
3. A hand held drill press apparatus for enabling a power hand drill to be
operated as a drill press, comprising:
a sleeve having an open upper end, an open lower end and a side wall
therebetween, an interior of the side wall having an inwardly extending
shoulder wall disposed on a lower portion thereof, the open lower end of
the sleeve having an annular recess formed on an interior surface of the
shoulder wall;
a drill engagement collar for coupling with a nose of a hand held drill,
the collar being slidably received within the open upper end of the
sleeve;
a biasing member disposed interiorly of an upper portion of the sleeve, the
biasing member having a lower portion abutting the shoulder wall, an upper
end of the biasing member being disposed inwardly of the drill engagement
collar for biasing the drill engagement collar in an upward direction; and
an extension disk removably mountable on the sleeve adjacent the open lower
end for extending a length of the sleeve, the extension disk having a
central aperture therethrough.
4. The hand held drill press as set forth in claim 2 wherein the central
aperture has an adjustable clamp member disposed therein.
5. The hand held drill press as set forth in claim 4 wherein the extension
disk has four radially extending alignment sight holes extending outwardly
therefrom.
6. The hand held drill press as set forth in claim 2 wherein the open lower
end of the sleeve has four radially extending alignment sight holes
extending outwardly therefrom.
7. The hand held drill press as set forth in claim 3 wherein the open lower
end of the sleeve has four radially extending alignment sight holes
extending outwardly therefrom.
8. The hand held drill press as set forth in claim 3 wherein the central
aperture has an adjustable clamp member disposed therein.
9. The hand held drill press as set forth in claim 8 wherein the extension
disk has four radially extending alignment sight holes extending outwardly
therefrom.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to drill guides and more particularly
pertains to a new hand held drill press for enabling a power hand drill to
be converted into a drill press.
2. Description of the Prior Art
The use of drill guides is known in the prior art. More specifically, drill
guides heretofore devised and utilized are known to consist basically of
familiar, expected and obvious structural configurations, notwithstanding
the myriad of designs encompassed by the crowded prior art which have been
developed for the fulfillment of countless objectives and requirements.
Known prior art drill guides include U. S. Pat. No. 4,836,720 to Hadden;
U.S. Pat. No. 4,961,674 to Wang et al.; U.S. Pat. No. Des. 264,930 to
Lindsay; U.S. Pat. No. 4,290,717 to Aslen; U.S. Pat. No. 4,507,026 to
Lund; and U.S. Pat. No. 4,538,943 to Clifton et al.
While these devices fulfill their respective, particular objectives and
requirements, the aforementioned patents do not disclose a new hand held
drill press. The inventive device includes a hollow cylindrical sleeve
having an open upper end, an open lower end and a cylindrical side wall
therebetween. An interior of the cylindrical side wall has an inwardly
extending cylindrical wall disposed on a lower half portion thereof. The
open lower end of the sleeve has an annular recess formed on an interior
surface thereof. A cylindrical drill engagement collar is provided. The
cylindrical drill engagement collar is dimensioned for coupling with a
nose of a hand held drill. The collar is slidably received within the open
upper end of the hollow cylindrical sleeve. A spring member is disposed
interiorly of an upper half portion of the cylindrical side wall of the
hollow cylindrical sleeve. The spring member has a lower portion secured
to an upper end of the inwardly extending cylindrical wall. An upper end
of the spring member is disposed inwardly of the cylindrical drill
engagement collar for upward biasing thereof.
In these respects, the hand held drill press according to the present
invention substantially departs from the conventional concepts and designs
of the prior art, and in so doing provides an apparatus primarily
developed for the purpose of enabling a power hand drill to be converted
into a drill press.
SUMMARY OF THE INVENTION
In view of the foregoing disadvantages inherent in the known types of drill
guides now present in the prior art, the present invention provides a new
hand held drill press construction wherein the same can be utilized for
enabling a power hand drill to be converted into a drill press.
The general purpose of the present invention, which will be described
subsequently in greater detail, is to provide a new hand held drill press
apparatus and method which has many of the advantages of the drill guides
mentioned heretofore and many novel features that result in a new hand
held drill press which is not anticipated, rendered obvious, suggested, or
even implied by any of the prior art drill guides, either alone or in any
combination thereof.
To attain this, the present invention generally comprises a hollow
cylindrical sleeve having an open upper end, an open lower end and a
cylindrical side wall therebetween. An interior of the cylindrical side
wall has an inwardly extending cylindrical wall disposed on a lower half
portion thereof. The open lower end of the sleeve has an annular recess
formed on an interior surface thereof. A cylindrical drill engagement
collar is provided. The cylindrical drill engagement collar is dimensioned
for coupling with a nose of a hand held drill. The collar is slidably
received within the open upper end of the hollow cylindrical sleeve. A
spring member is disposed interiorly of an upper half portion of the
cylindrical side wall of the hollow cylindrical sleeve. The spring member
has a lower portion secured to an upper end of the inwardly extending
cylindrical wall. An upper end of the spring member is disposed inwardly
of the cylindrical drill engagement collar for upward biasing thereof. At
least one extension disk is provided. The extension disk is comprised of a
cylindrical ring having a central aperture therethrough. The central
aperture has an upwardly extending cylindrical flange. The flange has an
annular protuberance disposed thereon. The flange is dimensioned for being
received within the open lower end of the sleeve with the annular
protuberance snap engaging the annular recess of the sleeve. The central
aperture has an annular recess disposed on an interior surface thereof.
There has thus been outlined, rather broadly, the more important features
of the invention in order that the detailed description thereof that
follows may be better understood, and in order that the present
contribution to the art may be better appreciated. There are additional
features of the invention that will be described hereinafter and which
will form the subject matter of the claims appended hereto.
In this respect, before explaining at least one embodiment of the invention
in detail, it is to be understood that the invention is not limited in its
application to the details of construction and to the arrangements of the
components set forth in the following description or illustrated in the
drawings. The invention is capable of other embodiments and of being
practiced and carried out in various ways. Also, it is to be understood
that the phraseology and terminology employed herein are for the purpose
of description and should not be regarded as limiting.
As such, those skilled in the art will appreciate that the conception, upon
which this disclosure is based, may readily be utilized as a basis for the
designing of other structures, methods and systems for carrying out the
several purposes of the present invention. It is important, therefore,
that the claims be regarded as including such equivalent constructions
insofar as they do not depart from the spirit and scope of the present
invention.
Further, the purpose of the foregoing abstract is to enable the U.S. Patent
and Trademark Office and the public generally, and especially the
scientists, engineers and practitioners in the art who are not familiar
with patent or legal terms or phraseology, to determine quickly from a
cursory inspection the nature and essence of the technical disclosure of
the application. The abstract is neither intended to define the invention
of the application, which is measured by the claims, nor is it intended to
be limiting as to the scope of the invention in any way.
It is therefore an object of the present invention to provide a new hand
held drill press apparatus and method which has many of the advantages of
the drill guides mentioned heretofore and many novel features that result
in a new hand held drill press which is not anticipated, rendered obvious,
suggested, or even implied by any of the prior art drill guides, either
alone or in any combination thereof.
It is another object of the present invention to provide a new hand held
drill press which may be easily and efficiently manufactured and marketed.
It is a further object of the present invention to provide a new hand held
drill press which is of a durable and reliable construction.
An even further object of the present invention is to provide a new hand
held drill press which is susceptible of a low cost of manufacture with
regard to both materials and labor, and which accordingly is then
susceptible of low prices of sale to the consuming public, thereby making
such hand held drill press economically available to the buying public.
Still yet another object of the present invention is to provide a new hand
held drill press which provides in the apparatuses and methods of the
prior art some of the advantages thereof, while simultaneously overcoming
some of the disadvantages normally associated therewith.
Still another object of the present invention is to provide a new hand held
drill press for enabling a power hand drill to be converted into a drill
press.
Yet another object of the present invention is to provide a new hand held
drill press which includes a hollow cylindrical sleeve having an open
upper end, an open lower end and a cylindrical side wall therebetween. An
interior of the cylindrical side wall has an inwardly extending
cylindrical wall disposed on a lower half portion thereof. The open lower
end of the sleeve has an annular recess formed on an interior surface
thereof. A cylindrical drill engagement collar is provided. The
cylindrical drill engagement collar is dimensioned for coupling with a
nose of a hand held drill. The collar is slidably received within the open
upper end of the hollow cylindrical sleeve. A spring member is disposed
interiorly of an upper half portion of the cylindrical side wall of the
hollow cylindrical sleeve. The spring member has a lower portion secured
to an upper end of the inwardly extending cylindrical wall.
An upper end of the spring member is disposed inwardly of the cylindrical
drill engagement collar for upward biasing thereof.
These together with other objects of the invention, along with the various
features of novelty which characterize the invention, are pointed out with
particularity in the claims annexed to and forming a part of this
disclosure. For a better understanding of the invention, its operating
advantages and the specific objects attained by its uses, reference should
be made to the accompanying drawings and descriptive matter in which there
are illustrated preferred embodiments of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be better understood and objects other than those set
forth above will become apparent when consideration is given to the
following detailed description thereof. Such description makes reference
to the annexed drawings wherein:
FIG. 1 is a side view of a new hand held drill press according to the
present invention shown in cross-section.
FIG. 2 is a bottom plan view of the present invention.
FIG. 3 is a side view of an alternate embodiment of the present invention.
FIG. 4 is a bottom plan view of the alternate embodiment of the present
invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
With reference now to the drawings, and in particular to FIGS. 1 through 4
thereof, a new hand held drill press embodying the principles and concepts
of the present invention and generally designated by the reference numeral
10 will be described.
As best illustrated in FIGS. 1 through 4, the hand held drill press 10
comprises a hollow cylindrical sleeve 12 having an open upper end 14, an
open lower end 16 and a cylindrical side wall 18 therebetween. An interior
of the cylindrical side wall 18 has an inwardly extending cylindrical wall
20 disposed on a lower half portion thereof. The open lower end 16 of the
sleeve 12 has an annular recess 22 formed on an interior surface thereof.
A cylindrical drill engagement collar 24 is provided. The cylindrical drill
engagement collar 24 is dimensioned for coupling with a nose 26 of a hand
held drill 28. The collar 24 is slidably received within the open upper
end 14 of the hollow cylindrical sleeve 12.
A spring member 30 is disposed interiorly of an upper half portion of the
cylindrical side wall 18 of the hollow cylindrical sleeve 12. The spring
member 30 has a lower portion secured to an upper end 32 of the inwardly
extending cylindrical wall 20. An upper end of the spring member 30 is
disposed inwardly of the cylindrical drill engagement collar 24 for upward
biasing thereof.
At least one extension disk 34 is provided. The extension disk 34 is
utilized to reduce the depth of a hole drilled. The extension disk 34 is
comprised of a cylindrical ring 36 having a central aperture 38
therethrough. The central aperture 38 has an upwardly extending
cylindrical flange 40. The flange 40 has an annular protuberance 42
disposed thereon. The flange 40 is dimensioned for being received within
the open lower end 16 of the sleeve 12 with the annular protuberance 42
snap engaging the annular recess 22 of the sleeve 12. The central aperture
38 has an annular recess 44 disposed on an interior surface thereof. The
annular recess 44 will snap engage the annular protuberance 42 of another
extension disk 34 to further reduce the depth of a drilled hole. The lower
surface of each extension disk 34 is abraded so as to grip the work piece.
In an alternate embodiment, as illustrated in FIGS. 3 and 4, the extension
disk 34 is provided with central aperture 38 having an adjustable clamp
member 46 disposed therein. The adjustable clamp member 46 will slide
adjust within the central aperture 38 to correspond with the thickness of
the edge of the board. The adjustable clamp member having downwardly
extending nose members 48 to be positioned on opposing sides of the edge
of the board. The extension disk has four radially extending alignment
sight holes 50 extending outwardly therefrom. The open lower end 16 of the
sleeve 12 also has four radially extending alignment sight holes 50
extending outwardly therefrom.
To use, a person would simply insert a portable hand drill 28 into the open
upper end of the sleeve 12 and adjust the bit so that it would not extend
any further than the open lower end 16 of the sleeve 12. The device 10
would then be placed against the surface being drilled, with the open
lower end 16 of the sleeve 12 in contact with the surface and the device
10 centered over the area where the hole is wanted. The drill 28 would be
activated and the user would press it down against the spring member 30
until it could go no further. This would create a perfectly straight hole
exactly one inch deep. If the needed hole is smaller in depth, the user
can simply attach as many extension disks 34 to the open lower end 16 of
the sleeve 12 to create the depth of drilled hole desired. The alternate
embodiment allows for the device 10 to drill straight holes into the edges
of thinner boards.
As to a further discussion of the manner of usage and operation of the
present invention, the same should be apparent from the above description.
Accordingly, no further discussion relating to the manner of usage and
operation will be provided.
With respect to the above description then, it is to be realized that the
optimum dimensional relationships for the parts of the invention, to
include variations in size, materials, shape, form, function and manner of
operation, assembly and use, are deemed readily apparent and obvious to
one skilled in the art, and all equivalent relationships to those
illustrated in the drawings and described in the specification are
intended to be encompassed by the present invention.
Therefore, the foregoing is considered as illustrative only of the
principles of the invention. Further, since numerous modifications and
changes will readily occur to those skilled in the art, it is not desired
to limit the invention to the exact construction and operation shown and
described, and accordingly, all suitable modifications and equivalents may
be resorted to, falling within the scope of the invention.
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